RE: Re: [PATCH] ARM: dts: Fix omap l4per idling with wlcore edge sensitive interrupt

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> > >
> > > On omaps, if the wlcore interrupt is configured as level instead of edge,
> > > L4PER will stop doing hardware based idling after ifconfig wlan0 down is
> > > done and the WL_EN line is pulled down.
> > >
> > Do we understand why omap is doing this? Is it a bug or a normal behavior?
> >
> > AFAIK way back edge interrupts have been used. On some omaps based
> boards.
> > They have used level interrupts instead due to occasional interrupts being
> missed
> > By the omap interrupts controller when using edge based interrupts which
> caused
> > Issues. This was the reason many boards are set to using level based interrupts
> which
> > Seemed much more robust.
> 
> No idea yet why exactly the gpio modules won't idle after that. But for making
> edge interrupts behave, I suspect that Grygorii's patch "[RESEND PATCH] gpio:
> omap: Fix lost edge interrupts" fixes those issues.
> 
Glad to see this patch fixing edge interrupts. Makes a lot of sense.
Then, all looks good to me.

Best Regards,
Eyal
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